Detailed Drawings > Annotating the Drawing > Dimensioning the Model > Formatting Dimension Display > Working with Dimensional Tolerances > About Dimensional Tolerances in Detailed Drawings
  
About Dimensional Tolerances in Detailed Drawings
You can set the tolerance standard as ANSI or ISO, and set the tolerance display on or off. You can drive dimensional tolerances using a set of tolerance tables. The system assigns each model a tolerance standard of either ANSI or ISO.
When you switch from ISO to ANSI, the system assigns the ANSI tolerances based on the nominal dimension’s number of digits and deletes the tolerance table reference.
When you switch from ANSI to ISO, a set of tolerance tables drives the ISO-standard tolerances.